#define _CRT_SECURE_NO_WARNINGS 1





//https://www.luogu.com.cn/problem/P3397




#include<iostream>

using namespace std;

const int N = 1010;

int n, m;
int f[N][N];

void insert(int x1, int y1, int x2, int y2)
{
	f[x1][y1]++;
	f[x2 + 1][y2 + 1]++;
	f[x2 + 1][y1]--;
	f[x1][y2 + 1]--;
}

int main()
{
	cin >> n >> m;

	while (m--)
	{
		int x1, y1, x2, y2;
		cin >> x1 >> y1 >> x2 >> y2;
		insert(x1, y1, x2, y2);
	}

	for (int i = 1;i <= n;i++)
	{
		for (int j = 1;j <= n;j++)
		{
			f[i][j] = f[i][j] + f[i - 1][j] + f[i][j - 1] - f[i - 1][j - 1];
			cout << f[i][j]<<" ";
		}
		cout << "\n";
	}
	return 0;
}